As I said at the beginning of this thread, I have about 3 dozen of these postcards. I provide close ups of two examples of the top portion of the cards below.
This first one is the card originally scanned. I believe it is
not the thinnned variety:

Here's a second example, which I believe is the thinned variety:

I didn't even know that this variety existed, as it is not listed in Scott. The printed airmail eagle also looks to be slightly darker in color in the "thinned" variety.
Any significant difference in value between the two?